Why is my Def warning not clear on my GMC?
If the vehicle has been driven for a few miles, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC will not update, the message may have become latched into the ECM. There are three different reasons for a DEF (Diesel Exhaust Fluid) warning message to set.
What does my Def warning message say about exhaust fluid?
My def warning message says poor exhaust fluid quality, see owners manual now. I filled it with 4 gallons of good def gm: exhaust fluid quality, see owners manual now..4 gallons..50 miles…
Why does my GMC diesel engine not clear?
There is a calibration for the vehicle computer update .This will need to be done by a dealer. #PIP4864C: Low Or Speed Limited Diesel Exhaust Fluid Message Displayed Intermittently Or Will Not Reset – Including Cold Weather Operation – (Jan 13, 2011)
What’s the low Def indicator on my Duramax?
Low DEF indicator 2013 Duramax with 2000 miles. Low DEF indicator limited speed to 65. Refilled with 4.5 gallons, but message still on. Now message is limiting to 55. I am traveling on Labor Day weekend Denver to Jacks … read more I own a 2011 GMC 2500 Diesel.
If the vehicle has been driven for a few miles, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC will not update, the message may have become latched into the ECM. There are three different reasons for a DEF (Diesel Exhaust Fluid) warning message to set.
When did my GMC Duramax go low on Def?
Truck gave me a “Service DEF” warning about 3,400 miles into the trip. No way it could be low on DEF, right? It gave NO warnings about DEF range, etc, as a 2011 should.
Why does my GMC 2500 have a Def low message?
During cold temperature conditions a dealer may encounter a customer vehicle with a DEF low message or a speed limiting message even if the vehicle is known to be full of DEF. Additionally, the dealer may encounter a customer vehicle with a DEF range that does not reset after a refill event.
There is a calibration for the vehicle computer update .This will need to be done by a dealer. #PIP4864C: Low Or Speed Limited Diesel Exhaust Fluid Message Displayed Intermittently Or Will Not Reset – Including Cold Weather Operation – (Jan 13, 2011)
During cold temperature conditions a dealer may encounter a customer vehicle with a DEF low message or a speed limiting message even if the vehicle is known to be full of DEF. Additionally, the dealer may encounter a customer vehicle with a DEF range that does not reset after a refill event.
Is the Def fluid quality poor on a GMC Duramax?
According to Dennis Dillon techs who are (supposed) to be GM certified. They said there is no DTC errors. Those were cleared. #2 NOx sensor replaced and on the DIC portion it shows def fluid quality poor and shows speed restriced to 55mph.
According to Dennis Dillon techs who are (supposed) to be GM certified. They said there is no DTC errors. Those were cleared. #2 NOx sensor replaced and on the DIC portion it shows def fluid quality poor and shows speed restriced to 55mph.
Why is my Def warning message saying Poor exhaust fluid quality?
DEF fluid can degrade over time. This message indicates the quality of the DEF fluid is poor. What needed to be done is the DEF tank drained completly to remove the poor quality DEF fluid, then new DEF fluid put in and then run the DEF quality test to force the system to run a quality test.
Is there a way to reset a GMC fault code?
GMC specializes in sport utility vehicles, trucks and vans. If your GMC vehicle sets off a fault code, also known as a check-engine code, resetting the code after the repair has been made is a simple process. Once you locate the battery, the method for clearing the code is the same, regardless of the year, make or model of GMC vehicle.
How to reset level sensor on GMC Duramax?
If a level sensor is sensing fluid it will show active. The ECM will be reprogrammed using a “two part” level reset calibration available through TIS2WEB. This replaces the previous VCI calibration that required contacting GM Techline Customer Support Center.
Why does my 2015 Duramax Def light not reset?
2015 Duramax DEF light won’t reset after adding fluid and speed has been reduced to 55 mph. It’s under the rpm on left 2015 Duramax DEF light won’t reset after adding fluid and…
How to clear Def warning on GMC Truck?
“Exhaust Fluid Empty Refill Now – 4 MPH (6 km/h) Max Speed Next Fuel Fill\\ ,”Shut down the truck and allow ECM to power down (ign. key off, wait 2 minutes). With the ignition off fill the DEF tank with a maximum of 5 gallons (18.9 L). Start the truck and allow the warning messages on the DIC to go away.
2015 Duramax DEF light won’t reset after adding fluid and speed has been reduced to 55 mph. It’s under the rpm on left 2015 Duramax DEF light won’t reset after adding fluid and…
If a level sensor is sensing fluid it will show active. The ECM will be reprogrammed using a “two part” level reset calibration available through TIS2WEB. This replaces the previous VCI calibration that required contacting GM Techline Customer Support Center.
How much Def fluid is left in 2012 Duramax?
So I have a 2012 Duramax. The DEF fluid got low. It read 200 miles remaining. So I put more DEF fluid in. It held 1.5 gallons. Which is not enough to fill the tank on that. Still reads 200 miles remaining.